What is meant by oscillating theory?

Oscillating theory refers to a cosmological model suggesting that the universe undergoes a series of expansions and contractions, or "oscillations," over time. In this model, the universe could expand to a maximum size and then collapse back under its own gravity, possibly leading to a new Big Bang and restarting the cycle. This theory contrasts with the more widely accepted model of a continuously expanding universe. Oscillating theory explores the implications of such cycles on the nature of time, space, and cosmic evolution.